These terms are very favorable towards you in terms of him paying 100% support and the kids staying with you every night. Once he finally detaches from you there's a good chance OW will convince him to re-negotiate. My GF also have VERY favorable child support terms. She built into the agreement that they get a little less favorable every 4 years. That reduces the urge of the ex-H to fight to improve them, which obvious he can, since he's facing four more years of pain instead of twenty.
Prepare for a highly favorable planned schedule being temporary. He may want to change the terms to 50% custody and 0% support or every other weekend custody and 75% support, he may ignore the terms on when and how to introduce the OW, and that daily hand-offs might become anxious events for your kids.
